Suite
With our SecureSuite, network operators and planners can assess the system performance in terms of stability and security. But with our ControlSuite, they will be able to take actions or adjustments with system-supplied preventive/enhancement control actions.
TEPCO-BCU Enhancement module explores the unique information of system transient stability and design effective preventive/enhancement controls guaranteeing system stability.
VSE module determines effective enhancement controls to increase the load margin by exercising all the no-cost and low-cost controls before resorting to load shedding.
TEPCO-BCU Enhancement
The TEPCO-BCU Enhancement package provides on-line transient stability preventive control with TEPCO-BCU-Preventive module, and enhancement/emergency control with TEPCO-BCU-Control module.
Key Functions
Preventive control for insecure contingencies
Enhancement control for critical contingencies
Minimum-number control
Minimum-cost control
Key Features
Support various control devices: generators, capacitors, transformers, etc.
Support minimum-number and minimum-cost control preferences
Parallel design for real time application with the implementation of distributed parallel computing platform
EMS integration capability
Key Benefits
Save time and manpower in dealing with the insecure and critical contingencies
Guarantee power network security
Improve system reliability
VSE
The VSE (On-line Voltage Stability Enhancement) module provides enhancement control, preventive control and load margin and sensitivity calculations with respect to voltage collapse.
Preventive Control
The Preventive Control Table shows the output of Preventive Control processing by VSA&E. The 5 recommended control actions shown when taken will mitigate all 4 insecure contingencies identified by the Contingency Ranking Analysis. The load margins of the 4 insecure contingencies, which are zero or negative before the preventive control, are all raised such that the load margin of all 4 contingencies are increased to the range from 424 MW to 2832 MW after the preventive control is applied.
Given these existing paragraphs for Preventive Control and Enhancement Control these two additional images are needed.
Enhancement Control
Using the same set of available controls as the preventive control, the enhancement control of VSA&E allows the operator to specify a desired (target) amount in MW of increase in load margin for a contingency or the base case. Enhancement control returns a priority-based, minimum set of control actions to execute the desired load margin increase. The output table shows that by executing the 4 recommended control actions the load margin is enhanced by 207 MW increasing the margin from 2710 MW to 2917 MW.
Given these existing paragraphs for Preventive Control and Enhancement Control these two additional images are needed.
2-Level Control
Level-1 Control: Reactive power compensating devices; ULTC; Phase-shifters; Real Power Generations; Generator terminal voltage.
Level-2 Control: Load shedding - load shedding by location and amount
Improve system reliability
Multiple Modes
VSE/RT: Real-Time Mode
VSE/LA: Look-Ahead Mode
VSE/STUDY: Study Mode
VSE/DA: Day Ahead Mode
VSE/STUC: Short Term Unit Commitment Mode
VSE/RE: Renewable Mode
